During Mmaxjacks, the lower body muscles are trained to generate - TopicsExpress



          

During Mmaxjacks, the lower body muscles are trained to generate force in the shortest amount of time. The quadriceps femoris, called the quads, are the muscles on the front of your thighs. Your quads are actively engaged as you straighten your leg, creating knee extension. As you jump out, you extend your knee and activate your quadriceps by pulling them up and away from the kneecap. This repetitive motion during Mmaxjacks increases your lean mass in your quadriceps by using your own body weight for resistance.
Posted on: Sat, 16 Aug 2014 10:36:57 +0000

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